8
Variants
Temperature ranges for valve body, seat and shaft
The standard VSS valve is designed to be mounted between flanges, but is also available in lugged design. Seat Max. temp.
A = PTFE (10 % carbon) 170 °C
C = 1.4462 (metal seat, 3 pcs.) 350 °C
1 550 °C
2 D = 1.4470 (metal seat type Y) 350 °C
1 550 °C
2 E = 1.4547 400 °C P = PTFE ( bre glass 15 %) 170 °C
Shaft Max. temp.
A = 1.4460 150 °C B = 1.4460 (hard chromed) 350 °C
1 550 °C
2 C = 1.4460 (HiCo coated) 350 °C
1 550 °C
2 F = 1.4435 150 °C G = 1.4435 (hard chromed) 550 °C K = 1.4539 350 °C
1 T = Titanium 150 °C
Valve body Max. temp.
A = 2343-12 550 °C CF8M 500 °C
E = CK-3MCuN 400 °C
For ordering
State desired valve according to the valve specification system below as well as type of actuator, positioner and accessories.
1 Check with SOMAS for temperatures between 350 and 550 °C At higher pressures for example steam turbine applications.
2 At lower pressures for example exhaust applications.
Valve specification system
Butterfl y valve - 5896 VSS - A 5 - A A C - A 1 1 - DN… - PN…
1234567891011
1 Valve type 5 Material – disc 8 Bearing – valve body/shaft 2 Valve body design
A = 2343-12* 1 = Without bearing A = Wafer design according to EN 558-1, Series 20 B = 2343-12* (hard chromed) 3 = HiCo (High Cobalt Alloy) F = ”Lugs” design C = 2343-12* (HiCo coated) 6 = 1.4547
3 Nominal pressure
7 = 1.4539 1 = PN 6
6 Material – seat 9 Stuf ng box
2 = PN 10 A = PTFE (10 % carbon) 1 = Graphite 5 = PN 25 C = 1.4462 (metal seat, 3 pcs.) 2 = PTFE 6 = PN 50 D = 1.4462 (metal seat, type Y, DN 900-)
4 Material – valve body
E = 1.4547
10 Valve size, DN
A = 2343-12 (CF8M) L = HiNi (High Nickel Alloy) E = CK-3MCuN T = HiCo (High Cobalt Alloy)
11 Drilling, counter anges
*1.4436 for DN 80-200
7 Material – shaft
A = 1.4460 B = 1.4460 (hard chromed) Check with SOMAS for further combinations. C = 1.4460 (HiCo coated) H = 1.4429 J = 1.4547
SOMAS reserves the right to make improvements without prior notice.
Representative
P.O. Box 107, SE-661 23 SÄFFLE, SWEDENPhone: +46 533 167 00
Fax: +46 533 141 36
E-mail: sales@somas.se www.somas.se
